diff --git a/daos/thread.php b/daos/thread.php
index dd8c0d8..3aff455 100644
--- a/daos/thread.php
+++ b/daos/thread.php
@@ -6,8 +6,8 @@ namespace Dao;
 class
 Thread
 {
-  public function
-  get_threads (
+  public static function
+  fetch_threads (
       SQLite3 $db)
   : array
   {
@@ -49,5 +49,30 @@ Thread
 
     return $therads;
   }
+
+
+  public static function
+  create_thread (
+      SQLite3 $db,
+      string  $title,
+      string  $explain)
+  : void
+  {
+    ;
+  }
+
+
+  public static function
+  delete_thread (
+      SQLite3 $db,
+      int     $id)
+  : void
+  {
+    $db -> query ("
+        DELETE FROM
+          threads
+        WHERE
+          id = $id");
+  }
 }